Weather archive in Washington / Dulles (airport)
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| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2025 December 6, Saturday | 19 | 0.0 32 | 753.1 29.65 1004.05 1004.05 | 761.8 29.99 1015.65 1015.65 | 1.0 0.04 1.33 1.33 | 96 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | -1.6 29 | 5.6 42 | 1500-2000 4921-6562 | 12.0 7.5 | -0.6 31 | |||||||||||||||
16 | 3.3 38 | 752.1 29.61 1002.72 1002.72 | 760.6 29.94 1014.05 1014.05 | 0.5 0.02 0.67 0.67 | 83 | Wind blowing from the south-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 600-1000 1968-3281 | 16.0 9.9 | 0.6 33 | ||||||||||||||||||
13 | 5.0 41 | 751.6 29.59 1002.05 1002.05 | 760.1 29.93 1013.38 1013.38 | -1.2 -0.05 -1.6 -1.6 | 73 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | -1.7 29 | 5.0 41 | 600-1000 1968-3281 | 16.0 9.9 | 0.6 33 | ||||||||||||||||
10 | 0.0 32 | 752.8 29.64 1003.65 1003.65 | 761.5 29.98 1015.25 1015.25 | 0.5 0.02 0.67 0.67 | 92 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | Mist. | 50-100 164-328 | 4.0 2.5 | -1.1 30 | |||||||||||||||||
07 | -0.6 31 | 752.3 29.62 1002.98 1002.98 | 760.9 29.96 1014.45 1014.45 | 0.2 0.01 0.27 0.27 | 92 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | -1.7 29 | 0.0 32 | 300-600 984-1968 | 11.0 6.8 | -1.7 29 | Trace of precipitation Trace of precipitation | 6 | ||||||||||||||
04 | -1.1 30 | 752.1 29.61 1002.72 1002.72 | 760.7 29.95 1014.18 1014.18 | -0.5 -0.02 -0.67 -0.67 | 92 | Wind blowing from the north-west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 200-300 656-984 | 11.0 6.8 | -2.2 28 | Trace of precipitation Trace of precipitation | 3 | ||||||||||||||||
01 | -1.7 29 | 752.6 29.63 1003.38 1003.38 | 761.2 29.97 1014.85 1014.85 | -1.3 -0.05 -1.73 -1.73 | 96 | Calm, no wind | Calm | 100%. 10/10. 8 oktas | Continuous fall of snowflakes, slight at time of observation. | -2.8 27 | -0.6 31 | 100-200 328-656 | 4.0 2.5 | -2.2 28 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||
| December 5, Friday | 22 | -1.7 29 | 753.9 29.68 1005.12 1005.12 | 762.6 30.02 1016.72 1016.72 | -0.7 -0.03 -0.93 -0.93 | 96 | Wind blowing from the north-east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | Mist. | 100-200 328-656 | 6.0 3.7 | -2.2 28 | ||||||||||||||||
19 | -1.7 29 | 754.6 29.71 1006.05 1006.05 | 763.3 30.05 1017.65 1017.65 | -0.8 -0.03 -1.07 -1.07 | 89 | Wind blowing from the north-east | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | -2.8 27 | -1.1 30 | 300-600 984-1968 | 12.0 7.5 | -3.3 26 | Trace of precipitation Trace of precipitation | 6 | ||||||||||||||